Balanced valve with pressure sensing means

Details Balanced valve with pressure sensing means Balanced valve with pressure sensing means

1976-05-13

1977-05-10

Nilson, Robert G.

Fluid handling

Systems

Sequentially progressive opening or closing of plural valves

13763015, F16K 132

Patent

active

040222470

ABSTRACT:
An improved balanced valve includes a radial arrray of pressure sensing passages in the main disc which extend from the axial opening to a peripheral region of the disc below the seating surface of the disc such that when fluid flow reverses, as when there is a rupture of the first flow passage, an upward force is generated on the main disc just prior to closure which tends to resist the closing force on the valve, the pressure sensing passages allowing a higher fluid pressure to be communicated to the region above the main valve disc assembly to effectively oppose this resistance to closure.

REFERENCES:
patent: 3601157 (1971-08-01), Milleville
patent: 3888280 (1975-06-01), Tartaglia

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